<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
  <table align="center" border="1" cellspacing="0" cellpadding="5" width="500" height="300">
    <thead>
      <tr>
        <th>数学</th>
        <th>语文</th>
        <th>英语</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td colspan="2" rowspan="2">10</td>
        <!-- <td>20</td> -->
        <td>30</td>
      </tr>
      <tr>
        <!-- <td>40</td>
        <td>50</td> -->
        <td>60</td>
      </tr>
      <tr>
        <td>70</td>
        <td>80</td>
        <td>90</td>
      </tr>
    </tbody>
  </table>

</body>
</html>